Developers

Developers

Visibility Flux is built to be adjusted without touching plugin files. Everything below is a standard WordPress filter — put these in your theme's functions.php or a small site-specific plugin.

Content and post types

rm_supported_post_types

Which post types appear in the editor sidebar.

add_filter( 'rm_supported_post_types', function ( $types ) {
    $types[] = 'portfolio';
    return $types;
} );

rm_editorial_post_types

Which post types are treated as editorial content (articles) rather than products, affecting how prompts are built.

the_content

Standard WordPress. Visibility Flux's front-end CTA output respects it.

Internal links

rm_internal_links_limit

Maximum number of link suggestions returned per article.

add_filter( 'rm_internal_links_limit', fn() => 8 );

rm_internal_links_min_score

Minimum relevance score a candidate must reach to be suggested. Raise it for fewer, stronger matches.

rm_slug_stopwords

Words ignored when extracting keywords from titles and slugs. Ships with stopwords for French, English, Arabic, Spanish, German, Portuguese and Dutch — extend it for your language.

add_filter( 'rm_slug_stopwords', function ( $words ) {
    return array_merge( $words, [ 'nuovo', 'della' ] );
} );

Commerce

rm_commerce_checks

Which product checks run in the readiness audit.

// Skip the weight check — shipping data lives in another system.
add_filter( 'rm_commerce_checks', function ( $checks ) {
    return array_diff( $checks, [ 'weight' ] );
} );

Valid names: image, price, description, short_desc, category, gtin, brand, weight.

rm_commerce_audit_limit

How many products a single audit pass covers.

rm_commerce_field_threshold

The minimum length before a description counts as thin.

rm_product_sync_config

The post type, meta keys and taxonomy Visibility Flux reads products from. Override this to support a non-WooCommerce shop plugin.

rm_product_sync_limit / rm_product_context_limit

How many products are synced into memory, and how many can be referenced in a single prompt.

AI and prompts

rm_anthropic_api_key

Supply the API key programmatically — useful for storing it in an environment variable instead of the database.

add_filter( 'rm_anthropic_api_key', fn() => getenv( 'ANTHROPIC_API_KEY' ) );

rm_claude_model

Force a model, ignoring the setting.

rm_claude_model_choices

Add or remove models from the Settings dropdown.

rm_memory_char_budget

Character budget for the site-memory context block injected into each prompt.

rm_ai_rate_limit_per_hour

Override the per-user hourly AI action cap.

// Unlimited for administrators, default for everyone else.
add_filter( 'rm_ai_rate_limit_per_hour', function ( $limit ) {
    return current_user_can( 'manage_options' ) ? 0 : $limit;
} );

vflux_competitor_ttl_days

How long competitor research stays fresh. Default 30 days.

Search Console import

rm_gsc_header_aliases

Extra column-header names to recognise when parsing a CSV. Visibility Flux already handles many languages; add yours if an export isn't recognised.

add_filter( 'rm_gsc_header_aliases', function ( $aliases ) {
    $aliases['clicks'][] = 'klikk';
    return $aliases;
} );

AI traffic

rm_ai_referral_rate_limit

How many beacon hits one visitor may send per window. Default 20. Set to 0 to disable throttling entirely.

add_filter( 'rm_ai_referral_rate_limit', fn() => 50 );

rm_ai_referral_rate_window

The window in seconds. Default 600 (ten minutes).

Indexing

vflux_instant_index_submit

Return false to skip IndexNow submission for a specific URL.

add_filter( 'vflux_instant_index_submit', function ( $submit, $url ) {
    return strpos( $url, '/private/' ) === false;
}, 10, 2 );

Language and branding

rm_site_language_name

Override the detected language name sent to the AI.

vflux_plugin_display_name

Rebrand the plugin's display name in the admin. The product name is deliberately not translatable — this filter is the supported way to change it.

Page builders

Visibility Flux reads a page's text, images and links from the builder that stores them, so audits are correct on sites where post_content is empty.

rm_builder_signatures

The meta-key patterns used to recognise a builder's stored data. Add your own builder here and every check — thin content, alt text, internal links, llms.txt, commerce — picks it up at once.

add_filter( 'rm_builder_signatures', function ( $sigs ) {
    $sigs['my_builder'] = [ '_my_builder_data' ];
    return $sigs;
} );

rm_builder_min_words

How many words post_content must hold before Visibility Flux trusts it and skips the builder lookup. Default 20.

Writing back to a page builder

Visibility Flux edits builder pages one text field at a time. Which fields it is willing to touch is a list, not a guess — a wrong guess would overwrite a layout setting rather than a sentence, so an unrecognised widget is skipped and simply not offered.

rm_elementor_text_keys

Elementor settings keys that hold editable prose, by widget type. Add your own widget here and it becomes editable in Visibility Flux.

add_filter( 'rm_elementor_text_keys', function ( $keys ) {
    $keys['my-widget'] = [ 'headline', 'body' ];
    return $keys;
} );

rm_shortcode_text_fields

The same idea for the shortcode builders. inner means the text between the tags and may hold HTML; anything else names an attribute, which is plain text only.

add_filter( 'rm_shortcode_text_fields', function ( $fields ) {
    $fields['my_module'] = [ 'inner', 'subtitle' ];
    return $fields;
} );

rm_shortcode_builders

Which detected builders are edited through the shortcode path. Defaults to Divi and WPBakery.

rm_builder_is_writable

Final say on whether a page's body text can be written back where the reader will see it. Return true for a builder you have taught Visibility Flux to write, and the editor swaps its warning for the block panel.

add_filter( 'rm_builder_is_writable', function ( $writable, $builder, $post_id ) {
    return $builder === 'My Builder' ? true : $writable;
}, 10, 3 );

rm_builder_signatures

Documented under Page builders — this is what makes a builder readable. Writing needs one of the filters above as well.

Extending the admin

The Pro add-on drives the base plugin entirely through these, so anything Pro can add to the editor, another plugin can add the same way.

rm_editor_config (filter)

The configuration array handed to the editor's JavaScript. Add your own keys.

add_filter( 'rm_editor_config', function ( array $cfg ) {
    $cfg['myFeature'] = true;
    return $cfg;
} );

rm_editor_scripts_enqueued (action)

Fires after the editor's scripts are registered. Hang your own script off rm-editor here so the dependency resolves.

rm_admin_scripts_enqueued (action)

Fires on every Visibility Flux admin screen, passed the page slug (rm-map, rm-editor, …).

vflux_settings_tabs (filter)

The Settings tabs, as [ slug, icon, label ] rows. Receives the tabs and whether the licence is valid.

vflux_editor_tabs · vflux_editor_seo_panel · vflux_editor_content_panel · vflux_sidebar_actions (actions)

Render points inside the editor: the tab strip, the two panels, and the sidebar's action area.

vflux_is_pro · vflux_pro_url (filters)

The Pro capability seam. vflux_is_pro decides whether Pro features are unlocked; vflux_pro_url is where an upgrade link points.

Search Console import

rm_gsc_file_names

The file names shown on the import screen. Search Console names the files in the account's own language, so these are translatable and default to the English ones.

add_filter( 'rm_gsc_file_names', function ( $names ) {
    $names['dates'] = 'Graphique.csv';
    return $names;
} );

vflux_llms_txt_descriptions

Supply the one-line descriptions used in llms.txt yourself, skipping the AI call. Return an array keyed by URL, or null to let Visibility Flux decide — which means an AI description with Pro, and a trimmed excerpt without it.

add_filter( 'vflux_llms_txt_descriptions', function ( $descriptions, $items ) {
    return array_map( fn( $i ) => my_summary( $i['url'] ), $items );
}, 10, 2 );

rm_memory_has_catalog

Whether this site has a product catalogue. Returning false hides the site-memory product layer entirely; returning true shows it for a shop Visibility Flux did not detect on its own.

Scoring and the CTR curve

rm_ctr_curve

Expected click-through rate by position, used for every lost-clicks estimate. Replace it with your own industry's curve if you have measured one.

add_filter( 'rm_ctr_curve', function ( $curve ) {
    $curve[1] = 0.32;
    return $curve;
} );

rm_ctr_curve_floor

The floor applied past the end of the curve, so a very deep page never scores zero or negative. Default 0.0005.

rm_chars_per_word_dense · rm_chars_per_word_sea

Characters per word when counting text in scripts that do not space their words — Han and kana (default 2), and Thai, Lao, Khmer and Myanmar (default 5). Only affects word-count estimates such as thin-content detection.

Audits

rm_audit_max_posts · rm_audit_limits

How many posts the content audit sweeps, and the length thresholds it judges titles and descriptions by.

rm_speed_max_pages · rm_speed_page_choices · rm_speed_per_page

The default number of pages the speed audit fetches, the choices offered in the selector, and the per-page time budget.

rm_speed_lcp_min_bytes · rm_speed_limits

When the main image counts as heavy, and the thresholds for JavaScript weight and render-blocking file counts.

rm_answers_max_pages · rm_answers_content_types

How many pages answer readiness checks, and which post types it treats as answerable content.

rm_answers_stale_days

How old a page must be before Updated recently fails. Default suits evergreen content; lower it for news.

rm_answers_lead_min_chars · rm_answers_lead_max_chars · rm_answers_question_marks

What counts as a quotable opening, and how many question-form headings a page needs.

rm_hreflang_multilingual · rm_hreflang_sample

Whether the site is treated as multilingual (auto-detected from your translation plugin), and how many pages the hreflang check samples.

rm_decay_min_position_drop · rm_decay_min_click_drop · rm_decay_min_impressions

How far a page must fall between imports before Losing ground reports it.

rm_ai_nojs_pages · rm_ai_nojs_pass_words · rm_ai_nojs_fail_words

Which pages the no-JavaScript check samples and the word counts that decide a pass.

Reliability

rm_claude_attempts

How many times a Claude request is attempted when Anthropic answers busy or rate limited. Default 3. A refusal such as an invalid key is never retried.

add_filter( 'rm_claude_attempts', fn() => 5 );

rm_claude_retry_wait

Seconds to wait before a retry. Anthropic's Retry-After header takes precedence when present.

rm_claude_effort

The effort level for a single request, before it is sent. Receives the computed level, the request's max_tokens, and the chosen mode. Return low, medium, high, xhigh, max, or an empty string to send nothing (which the API treats as high).

add_filter( 'rm_claude_effort', function ( $level, $max, $mode ) {
    return $max > 4000 ? 'xhigh' : $level;
}, 10, 3 );

rm_effort_short_task_tokens

The max_tokens value at or below which a request counts as a short task in Balanced mode. Default 800.

rm_effort_models

Which model IDs accept output_config.effort. An ID that is not listed has the field omitted, so add a newly released model here to opt it in before Visibility Flux ships an update.

rm_model_prices

Per-model USD rates per million tokens, used for the cost readout.

add_filter( 'rm_model_prices', function ( $rates ) {
    $rates['claude-opus-6'] = [ 'input' => 5.0, 'output' => 25.0 ];
    return $rates;
} );

rm_batch_claim_timeout

How long a batch item stays claimed by a browser before it is released back to the queue. Default 10 minutes — this is what stops a closed tab from stalling a run.

rm_license_grace

How long a licence that verified recently keeps working while the licence server cannot be reached. Default 3 days. A genuine refusal ignores this.

add_filter( 'rm_license_grace', fn() => WEEK_IN_SECONDS );

rm_index_daily_limit

Daily URL-inspection budget before Visibility Flux stops and tells you the quota is reached.

Licensing

vflux_license_api

Point the licence client at a different API base. Mostly useful for staging.

add_filter( 'vflux_license_api', fn() => 'https://staging-api.example.com' );

Constants

Third-party integrations

Visibility Flux detects and works with these automatically — no configuration:

• SEO plugins — Yoast SEO, Rank Math, All in One SEO, SEOPress, The SEO Framework, Slim SEO
• WPML — translations are detected, and Google submission can cover every language version
• WooCommerce — product catalogue for memory, CTAs and the commerce audit
• WordPress 7.0 Connectors — a site-wide Anthropic key

Data storage

Everything lives in your own database: options prefixed rm_, post meta prefixed _rm_, and transients prefixed rm_. uninstall.php removes all of it when the plugin is deleted through WordPress.